CN213092866U

CN213092866U - Halogen-free flame-retardant insulating cable

Info

Publication number: CN213092866U
Application number: CN202022345008.5U
Authority: CN
Inventors: 曹金焕; 李银磊
Original assignee: Tianjin Junchi Cable Co ltd
Current assignee: Tianjin Junchi Cable Co ltd
Priority date: 2020-10-20
Filing date: 2020-10-20
Publication date: 2021-04-30
Anticipated expiration: 2030-10-20

Abstract

The utility model discloses a there is not steamed fire-retardant insulated cable, including there being no halogen sheath, the inboard of no halogen sheath is provided with first fire-resistant isolation layer, the inboard of first fire-resistant isolation layer is provided with nothing halogen around the band, there is not steamed inside around the band to be provided with the packing, the inside symmetry of packing is provided with a power conductor, an optical fiber conductor, the outside symmetry of no halogen sheath is provided with a plurality of non-slip raised, non-slip raised is arc strip structure. The halogen-free flame-retardant insulated cable of the utility model can reduce the sliding or rotating probability generated after the photoelectric cable is fixed by arranging the anti-skid protrusions outside the halogen-free sheath; through set up the steel wire groove in there is not steamed sheath and set up the enhancement steel wire in the steel wire groove, through set up the strengthening groove in filling and set up the structure of reinforceing at strengthening inslot portion, can improve the bulk strength of photoelectric cable, make it be difficult for the fracture to finally reduce its use cost, improve its practicality.

Description

Halogen-free flame-retardant insulating cable

Technical Field

The utility model relates to a cable technical field, in particular to do not have steamed fire-retardant insulating cable.

Background

The optical cable is an integrated transmission medium which organically combines metal wires and optical fibers and simultaneously transmits electric energy and optical information in the same way and direction, realizes the integrated fusion of electric power flow, service flow and information flow, transmits information such as voice, data, video and the like while transmitting high-voltage electric energy by once erection, once construction and once investment, greatly shortens the construction period, reduces the construction cost, saves resources, lays a solid foundation for the construction of an intelligent power grid, can be divided into high-voltage optical cables and low-voltage optical cables according to the voltage grade, can be divided into indoor optical cables and outdoor optical cables according to the application field, wherein the outdoor optical cables can be divided into overhead optical cables and directly-buried optical cables, and the optical fibers in the optical cables are used as a high-speed, bidirectional, real-time and integrated communication system and are the foundation for realizing the intelligent power grid and are used for acquiring data of the intelligent power grid, The protection and control, the transmission of the interactive information between the user and the power grid and the information interaction of intelligent decision provide powerful channels, and the functions are perfect and efficient and are incomparable with other communication modes; the existing halogen-free flame-retardant insulating cable is poor in strength, so that the cable is easy to break in the using process, and meanwhile, the cable is smooth in the outside and can easily slide or rotate after being fixed, so that the using cost of equipment can be increased while the using cost of the equipment is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at provides do not have steamed fire-retardant insulating cable, can effectively solve the problem in the background art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the halogen-free flame-retardant insulating cable comprises a halogen-free sheath, wherein a first fire-resistant isolating layer is arranged on the inner side of the halogen-free sheath, a halogen-free wrapping tape is arranged on the inner side of the first fire-resistant isolating layer, filling is arranged inside the halogen-free wrapping tape, and a power supply conductor and an optical fiber conductor are symmetrically arranged inside the filling.

Preferably, the outside symmetry of no halogen sheath is provided with a plurality of non-slip raised, non-slip raised is arc strip structure, a plurality of steel wire groove has been seted up with non-slip raised's inside to no halogen sheath, a plurality of the inside in steel wire groove all is provided with a reinforcing steel wire, through set up non-slip raised in the no halogen sheath outside, can reduce the slip or the rotatory probability that the fixed back of photoelectric cable produced, through set up the steel wire groove in no halogen sheath and set up reinforcing steel wire in the steel wire inslot, can improve photoelectric cable's bulk strength, make it difficult fracture.

Preferably, first fire-resistant isolation layer is provided with hollow hole with the inside of halogen-free around the band, through setting up hollow hole, can be convenient for lay of filling.

Preferably, the filling is arranged in a hollow hole formed in the first fire-resistant isolation layer and the halogen-free wrapping tape, two photoelectric grooves are symmetrically formed in the filling, two strengthening grooves are symmetrically formed in two sides of the photoelectric grooves, a strengthening structure is arranged in each strengthening groove, the strengthening structure is in a triangular shape formed by three same components in a surrounding mode, the photoelectric grooves are formed in the filling, the power conductors and the optical fiber conductors can be conveniently placed, the strengthening grooves are formed in the filling, and the strengthening structures are arranged in the strengthening grooves, so that the strength of the photoelectric cable can be further improved.

Preferably, the power supply conductor is arranged in one of the photoelectric grooves formed in the filling part, the outer side of the power supply conductor is wrapped by the second fire-resistant isolation layer, the outer side of the second fire-resistant isolation layer is wrapped by the first insulation layer, transmission of electric energy can be facilitated by arranging the power supply conductor, and the use safety of the cable can be improved conveniently by arranging the second fire-resistant layer.

Preferably, the optical fiber conductor is arranged in another photoelectric groove formed in the filling part, the outer side of the optical fiber conductor is wrapped with a third fire-resistant isolation layer, the outer side of the third fire-resistant isolation layer is wrapped with a second insulation layer, transmission of optical information can be facilitated by arranging the optical fiber conductor, and improvement of the use safety of the cable can be facilitated by arranging the third fire-resistant layer.

Compared with the prior art, the utility model discloses following beneficial effect has:

the anti-skid protrusions are arranged on the outer side of the halogen-free sheath, so that the sliding or rotating probability generated after the photoelectric cable is fixed can be reduced; through set up the steel wire groove in there is not steamed sheath and set up the enhancement steel wire in the steel wire groove, through set up the strengthening groove in filling and set up the structure of reinforceing at strengthening inslot portion, can improve the bulk strength of photoelectric cable, make it be difficult for the fracture to finally reduce its use cost, improve its practicality.

Drawings

Fig. 1 is a schematic cross-sectional structural view of the halogen-free flame-retardant insulated cable of the present invention;

fig. 2 is a schematic view of the internal structure of the halogen-free flame-retardant insulated cable of the present invention;

fig. 3 is an enlarged view of fig. 1 at a.

In the figure: 1. a halogen-free sheath; 2. a first refractory barrier layer; 3. a halogen-free wrapping tape; 4. filling; 5. a power supply conductor; 6. an optical fiber conductor; 7. a steel wire groove; 8. reinforcing steel wires; 9. a hollow bore; 10. a photovoltaic cell; 11. a strengthening tank; 12. a reinforcing structure; 13. a second refractory barrier layer; 14. a first insulating layer; 15. a third refractory barrier layer; 16. a second insulating layer; 17. and (4) anti-skid bulges.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1-3, the halogen-free flame-retardant insulated cable includes a halogen-free sheath 1, a first fire-resistant isolation layer 2 is disposed on an inner side of the halogen-free sheath 1, a halogen-free wrapping tape 3 is disposed on an inner side of the first fire-resistant isolation layer 2, a filler 4 is disposed inside the halogen-free wrapping tape 3, and a power supply conductor 5 and an optical fiber conductor 6 are symmetrically disposed inside the filler 4;

a plurality of anti-skid protrusions 17 are symmetrically arranged on the outer side of the halogen-free sheath 1, the anti-skid protrusions 17 are of arc-shaped strip structures, a plurality of steel wire grooves 7 are formed in the halogen-free sheath 1 and the anti-skid protrusions 17, and a reinforcing steel wire 8 is arranged in each of the plurality of steel wire grooves 7; hollow holes 9 are formed in the first fire-resistant isolating layer 2 and the halogen-free wrapping tape 3; the filling 4 is arranged in hollow holes 9 formed in the first fire-resistant isolating layer 2 and the halogen-free wrapping tape 3, two photoelectric grooves 10 are symmetrically formed in the filling 4, two strengthening grooves 11 are symmetrically formed in two sides of the two photoelectric grooves 10, a strengthening structure 12 is arranged in each strengthening groove 11, and each strengthening structure 12 is in a triangular shape formed by three same components in a surrounding mode; the power supply conductor 5 is arranged in one of the photoelectric grooves 10 formed in the filler 4, the outer side of the power supply conductor 5 is wrapped by a second fire-resistant isolation layer 13, and the outer side of the second fire-resistant isolation layer 13 is wrapped by a first insulation layer 14; the optical fiber conductor 6 is arranged in another photoelectric groove 10 arranged in the filling 4, a third fire-resistant isolation layer 15 wraps the outer side of the optical fiber conductor 6, and a second insulation layer 16 wraps the outer side of the third fire-resistant isolation layer 15.

It should be noted that, the utility model relates to a halogen-free flame-retardant insulated cable, when in use, firstly, the photoelectric cable is fixed, then the photoelectric cable is connected with the equipment to be connected, the anti-slip bulge 17 arranged outside the halogen-free sheath 1 of the cable can increase the friction force between the cable and the external fixed object, thereby the fixed cable can not easily move or rotate when being held by external force, the stability of the cable is increased, thereby the adverse effect brought to the equipment by the movement and rotation of the cable is reduced, the reinforcing steel wire 8 in the steel wire groove 7 and the two reinforcing structures 12 in the filling 4 have certain strength, therefore, the cable can be provided with stronger supporting force, thereby the cable can not be easily bent and broken when being subjected to external force, thereby the overall strength of the cable is improved, the probability of the cable being broken when being subjected to external force is greatly reduced, thereby reducing the cost of use of the cable.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. Halogen-free flame-retardant insulating cable, its characterized in that: including no halogen sheath (1), the inboard of no halogen sheath (1) is provided with first fire-resistant isolation layer (2), the inboard of first fire-resistant isolation layer (2) is provided with nothing halogen around band (3), it is provided with around the inside of band (3) to have nothing halogen and fills (4), the inside symmetry of filling (4) is provided with one power conductor (5), one optical conductor (6).

2. The halogen-free, flame-retardant, insulated cable according to claim 1, characterized in that: the anti-skid device is characterized in that a plurality of anti-skid protrusions (17) are symmetrically arranged on the outer side of the halogen-free sheath (1), the anti-skid protrusions (17) are of arc-shaped strip structures, a plurality of steel wire grooves (7) are formed in the halogen-free sheath (1) and the anti-skid protrusions (17), and a plurality of reinforcing steel wires (8) are arranged in the steel wire grooves (7).

3. The halogen-free, flame-retardant, insulated cable according to claim 1, characterized in that: the first fire-resistant isolating layer (2) and the halogen-free wrapping tape (3) are internally provided with hollow holes (9).

4. The halogen-free, flame-retardant, insulated cable according to claim 1, characterized in that: the novel fireproof wrapping tape is characterized in that the filling body (4) is arranged in a first fireproof isolation layer (2) and a hollow hole (9) formed in the halogen-free wrapping tape (3), two photoelectric grooves (10) are symmetrically formed in the filling body (4), two strengthening grooves (11) are symmetrically formed in two sides of the two photoelectric grooves (10), a strengthening structure (12) is arranged in each strengthening groove (11), and the strengthening structure (12) is in a triangular shape formed by three same components in a surrounding mode.

5. The halogen-free, flame-retardant, insulated cable according to claim 1, characterized in that: the power supply conductor (5) is arranged in one of the photoelectric grooves (10) formed in the filler (4), a second fire-resistant isolation layer (13) wraps the outer side of the power supply conductor (5), and a first insulation layer (14) wraps the outer side of the second fire-resistant isolation layer (13).

6. The halogen-free, flame-retardant, insulated cable according to claim 1, characterized in that: the optical fiber conductor (6) is arranged in another photoelectric groove (10) formed in the filler (4), a third fire-resistant isolation layer (15) wraps the outer side of the optical fiber conductor (6), and a second insulation layer (16) wraps the outer side of the third fire-resistant isolation layer (15).